Daniel Mai, PA
NPI 1811770134 · Physician Assistant · Santa Ana, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Mai, PA is a Physician Assistant provider in Santa Ana, CA (NPI 1811770134).
Provider details
- NPI number
- 1811770134
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- PA63725 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
2 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
110 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 34 | $118 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 28 | $165 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 27 | $84 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 21 | $64 |
Typical Medicare-allowed amounts for these services range $64–$165 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 52 | 15 |
| Fluoxetine Hcl | 45 | — |
| Trazodone Hcl | 44 | 18 |
| Aripiprazole | 41 | 12 |
| Bupropion Hclbrand: Bupropion Xl | 41 | 12 |
| Lorazepam | 31 | 13 |
| Mirtazapine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,919 across 252 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-08-18
- Last updated
- 2026-03-09
- Certified
- 2026-03-09
Frequently asked questions
- What is Daniel Mai's NPI number?
- Daniel Mai's National Provider Identifier (NPI) is 1811770134, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Mai's specialty?
- Daniel Mai is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Daniel Mai located?
- Daniel Mai's practice location on file with NPPES is 999 N Tustin Ave Ste 216, Santa Ana, CA 92705-6506.
- What is Daniel Mai's phone number?
- The practice phone number listed in the NPPES registry for Daniel Mai is (805) 621-7651.
- Does Daniel Mai accept Medicare?
- Daniel Mai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Mai's NPI active?
- Yes — Daniel Mai's NPI (1811770134) is active in the NPPES registry as of the last update on 2026-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.